388132738009 has 3 divisors (see below), whose sum is σ = 388133361013. Its totient is φ = 388132115006.

The previous prime is 388132737991. The next prime is 388132738033. The reversal of 388132738009 is 900837231883.

The square root of 388132738009 is 623003.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 388132738009 - 2¹⁵ = 388132705241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388132738709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 311502 + ... + 934504.

Almost surely, 2^388132738009 is an apocalyptic number.

388132738009 is the 623003-rd square number.

388132738009 is the 311502-nd centered octagonal number.

It is an amenable number.

388132738009 is a deficient number, since it is larger than the sum of its proper divisors (623004).

388132738009 is an frugal number, since it uses more digits than its factorization.

388132738009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246006 (or 623003 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 388132738009 in words is "three hundred eighty-eight billion, one hundred thirty-two million, seven hundred thirty-eight thousand, nine".